#!/bin/bash
# Author: Ali Moradzade

# testing string length
val1=testing
val2=''

if [ -n $val1 ]
then
	echo "The string '$val1' is not empty"
else
	echo "The string '$val1' is empty"
fi

if [ -z $val2 ]
then
	echo "The string '$val2' is empty"
else
	echo "The string '$val2' is not empty"
fi

if [ -z $val3 ]
then
	echo "The string '$val3' is empty"
else
	echo "The string '$val3' is not empty"
fi
